杉木红锥混交造林效果分析

Effect Analysison the Mixed Afforestationof Cunninghamia lanceolata and Castanopsis hystrix

营造杉木红锥混交林、纯林进行试验比较,在同样的试验地内采用混交林、纯林造林,经过5年的经营管理,杉木红锥混交林效果显著。结果显示:杉木红锥混交林与杉木纯林、红锥纯林相比,平均树高分别高9.26%、3.51%,胸径粗10.71%、5.09%,冠幅大8.00%、3.85%,蓄积量多25.00%、12.24%,土壤结构好、养分含量高。

During the study, we constructed a mixed afforestationofCunninghamia lanceolata andCastanopsis hystrix- for experiment. Within the same testbed,weusedboth mixed forest and pure forest afforestation, and after five years of operation and management, the effect of mixed afforestation of Cunninghamia laneeolata andCastanopsis hystrix- wasmore.remarkable. Results showed that mixed afforestation of Cunninghamia lanceolata andCastanopsis hystrix, compared to the pureCunninghamia laneeolataafforestationsandpure Castanopsis hystrixafforestations, whose average tree height were 9.26% and 3.51% respectively; diameter at breast height were 10. 71% and 5.09% the crown breadths were 8. 00% and3.85 %; volume reached 25. 00 content. and 12. 24 %;had good soil structure and high nutrient.